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1. 发明授权

US08216219B2 Device for electrosurgically destroying body tissue 有权
标题翻译：用于电动破坏身体组织的装置
公开(公告)号：US08216219B2
公开(公告)日：2012-07-10
申请号：US10515945
申请日：2003-05-23
申请人： Kai Desinger , Thomas Stein , Andre Roggan , Thomas Prezewowsky
发明人： Kai Desinger , Thomas Stein , Andre Roggan , Thomas Prezewowsky
IPC分类号： A61B18/10
CPC分类号： A61B18/1477 , A61B2018/00875 , A61B2018/143
摘要： An electrode array is used for the thermal schlerosing of body tissue. The electrode array has at least three active electrodes that, during use, are placed in electrical-conducting connection with body tissue. A high frequency generator is electrically connected for selective application of current to the active electrodes for producing a high frequency voltage. A measuring device measures impedance of the tissue between the active electrodes. In addition, a selector device selects a sub-array including at least two active electrodes from the electrode array, the selecting being effected on the basis of the measured impedance. Further, a control device is configured such that a high frequency voltage is respectively applied between the active electrodes of the selected sub-array in such a way that a high frequency current flows between the selected active electrodes through the body tissue.
摘要翻译：电极阵列用于身体组织的热松解。电极阵列具有至少三个有效电极，其在使用期间被置于与身体组织的导电连接中。电连接高频发生器以选择性地施加电流到有源电极以产生高频电压。测量装置测量有源电极之间的组织的阻抗。此外，选择器装置从电极阵列中选择包括至少两个有源电极的子阵列，根据测得的阻抗进行选择。此外，控制装置被配置为使得在所选择的子阵列的有效电极之间分别施加高频电压，使得高频电流通过身体组织在所选择的有效电极之间流动。

2. 发明授权

US08221406B2 Device for the electro-surgical sclerosing of body tissues 有权
标题翻译：用于电外科硬化身体组织的装置
公开(公告)号：US08221406B2
公开(公告)日：2012-07-17
申请号：US11660613
申请日：2005-08-19
申请人： Kai Desinger , Thomas Stein , André Roggan , Thomas Prezewowsky
发明人： Kai Desinger , Thomas Stein , André Roggan , Thomas Prezewowsky
IPC分类号： A61B18/04
CPC分类号： A61B18/1206 , A61B18/1477 , A61B2018/00029 , A61B2018/00577 , A61B2018/00666 , A61B2018/00678 , A61B2018/00702 , A61B2018/00708 , A61B2018/00875 , A61B2018/167 , A61B2218/002
摘要： A high frequency current application apparatus for thermal sclerosing of body tissue, comprising a high frequency generator connected to at least two electrodes, one of which is to be introduced into body tissue. The apparatus includes a measuring and calculating device adapted to ascertain impedance (or ohmic resistance) between the two electrodes between which a respective therapeutic high frequency current flows. A control device is connected to the measuring and calculating device for varying the output power. During high frequency current application the measuring and calculating device forms the first derivative with respect of time of the impedance. The control device reduces output power when that derivative exceeds a positive threshold characteristic of a threat of tissue desiccation and restores output power to the original power when the first derivative exceeds in positive values a negative threshold characteristic of adequate rehydration of body tissue.
摘要翻译：一种用于身体组织的热硬化的高频电流施加装置，包括连接到至少两个电极的高频发生器，其中一个电极被引入到身体组织中。该装置包括测量和计算装置，其适于确定在相应的治疗性高频电流流动的两个电极之间的阻抗（或欧姆电阻）。控制装置连接到测量和计算装置以改变输出功率。在高频电流施加期间，测量和计算装置相对于阻抗的时间形成一阶导数。当该导数超过组织干燥威胁的正阈值特征时，控制装置降低输出功率，并且当一阶导数超过正值时，恢复输出功率至原始功率的输出功率，这是身体组织充分再水化的负阈值。

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